JPS6039414A - Spinning device in rotor type open-end spinning machine - Google Patents

Abstract

PURPOSE:To decrease the unevenness and defects of spun yarn, and to increase the effective fiber length of the filament constituting the yarn, by introducing air stream from the channel outlet into the rotor, and combining the stream smoothly with the accompanied gyrating stream at the inner wall of the rotor without lowering the speed of the air stream. CONSTITUTION:The inner wall of a rotor is furnished with the collecting face 16 to collect the opened fiber transferred from the channel 9 into the rotor 8, and with the sliding face 17 guiding the opened fiber attached to the collecting face 16 to the fiber-collecting groove 10 formed at the part having the largest inner diameter. The distance between the outlet end of the channel 9 and the collecting face 16 is selected to be <=1/2 of the mean fiber length, and the fiber F is dangled in the air stream and the gyrating stream in a straightened form. The yarn can be attached to the inner wall of the rotor rapidly from its end part by this process.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a spinning device in a rotor-type open-end spinning frame.

BACKGROUND TECHNOLOGY In general, in a rotor-type open-end spinning machine, as shown in FIG.
5 is transported to the combing roller 6,
After the fibers are spread apart by the combing roller 6 and garbage such as confectionery waste and fruit waste is discharged from the discharge lower, the spread fibers are separated by air generated in the conveying channel 9 due to the negative pressure in the rotor 8. It is sent into the rotor 8 by the flow. 114111 Fibers formed at the maximum inner diameter part of the inner wall surface 8a of the 0-8 8 riding on the swirling airflow within the rotor 8 generated by the action of the rotor 8 rotating at #i^ speed fed into the rotor 8. The cord bundle WIJ10 slides toward the focusing groove 10 and is focused into a ribbon shape.
The yarn is pulled out by a pull-out roller 13 through the pull-out hole 12 of the navel 11 while being heated by the rotation of the navel 11 , and wound into a package 15 by a wind-up roller 14 .

In this type of conventional device, when considering the flow of air into and out of the rotor 8, as a method of generating high-speed air flow that is essential for transporting the NII-treated fibers into the rotor B, an exhaust hole is used as shown in Fig. 1. There is a self-exhaust system with 21 B units. In this self-exhaust method, the air inside the rotor 8 is discharged to the outside through the exhaust hole 21 due to the action of centrifugal force generated by the rotation of the rotor 8, and the inside of the rotor 8 becomes negative pressure. 9 and thread pull-out hole 12
Air flows into the air through the air. On the other hand, there is a forced exhaust system (FIG. 8) which does not have the gas exhaust hole 21, which is different from that shown in FIG. This method uses a suction puller to open the channel 9 to the right of the boss part 1 of the opening device 1.
Since the air inside the rotor 8 is sucked out from the annular gap between 9 and 1, the inside of the rotor 8 becomes negative pressure and the inside of the rotor 8 becomes negative pressure.
Air flows into the rotor 8 through the tunnel 9 and the thread withdrawal hole 12. In addition, these self-exhaust methods and strong m1ll
There is a combination method that combines the III-IJ method.

In either method, the negative pressure in 1-98 is applied to 6, and the air generated in channel 9) is J, 1-1-
Send it to Ta 8 Hei it TatjA IIF Get,
6 Mli'il 4+/; The rotor 8 rides on the same airflow in the n-y 8 generated by the action of the rotor 8.
It attaches to viii8a. Comparing the speed of the swirling flow inside the rotor 8 and the speed of the airflow flowing inside the channel 9, the swirling flow inside the rotor 8 is an accompanying airflow caused by being drawn by the rotor inner wall surface 8a which is rotating at high speed. The speed near the rotor inner wall surface 8a is very fast, and the farther from the inner wall surface 8a the slower the speed. On the other hand, the airflow flowing through the channel 9 flows into the rotor 8 at a speed higher than the circumferential speed of the combing roller 6 (20 to 30 I/S). -Inner wall 8
Since the outlet of the channel 9 is located at a far distance from the rotor 8 and the swirling flow inside the rotor 8 is slow, the air flow and fibers 11ft,i enter the rotor 8 and rapidly expand. The fiber tip may be bent due to deceleration, or even if the outlet of the channel 9 is arranged close to the rotor inner wall surface 8a, the flow near the outlet of the channel 9 may be disturbed and the tip may be bent. Since the yarn rotates in a state where it is twisted and becomes a hook braid and adheres to the rotor inner wall surface 8a, there is a drawback that the strength of the yarn becomes low. In addition, in the strong M J11 method and the self/forced combination method, the swirling flow within the rotor 8 is discharged to the outside through the annular gap between the rotor inner wall surface 8a and the boss portion 19, so that the rotor flow is discharged from the inside of the channel. There was a problem in that a part of the IIAM that entered the rotor 8 was discharged from the rotor 8 while swirling on the swirling flow before being attached to the rotor inner wall surface 8a.

In order to solve this problem, the inner wall surface 8a of the rotor 8 is inserted into the rotor 8 from the channel 9, as shown in FIG. The apex angle α of the round bar, which is formed by extending the surface with which IcIJAHF comes into contact with the transported fibers, is increased gradually, and the apex angle formed by the remaining wall surface continuous with the fiber focusing groove 10 is gradually reduced. It has been proposed that the structure be formed as follows. In this device, the fibers F transported into the rotor 8 and attached to the inner wall surface 8a are moved along the inner wall surface 8a. 11 is greater than the flow force due to the airflow, and effective fibers are prevented from being entrained outside the rotor 8 along with the airflow. However, in this device, the channel 9 is arranged in the direction along the inner wall surface 88 near the end of the rotor. Because of this, the landing posture of the fibers on the inner wall 8a of the 60-ta is different, and the I! In the process of thread F moving around the rotor inner wall surface 8a, mutual entanglement of fibers 11F may occur, and IIIF exiting channel 9 may directly collide with the threads and cause winding, ＼(-1
There is a risk that the inconvenience may occur.

In addition, Ml@Ba inside the rotor is curved, and as it approaches 11@Shinto groove 10, the inner wall surface 8a (n [i So,
The sliding force of the fibers decreases, and t) U on the inner wall surface 8a.
There is also the possibility that an inconvenience may occur where N gathers and 1M$1 mutual entanglement occurs.

Purpose of the Invention The present invention has been made to solve the problems of the conventional art, and its purpose is to prevent the air flow entering the rotor from the tunnel outlet from being decelerated, and to reduce the accompanying swirling flow on the inner wall of the rotor. By smoothly merging the fibers and placing the fibers straight in the airflow and swirling flow, the fibers are quickly attached to the inner wall of the rotor from their tips, thereby preventing the fibers from becoming entangled with each other, and preventing uneven thickness of the spun yarn. To provide a spinning device for a rotor-type open-end spinning frame that can reduce yarn defects, increase the effective length of fibers constituting the yarn, and improve the strength of the yarn.

Structure of the Invention The above objectives are 3! In order to achieve this, the inventors of the present invention repeatedly conducted systematic experimental analysis and improvements to the rotor and the conveyance channel, and as a result, they arrived at the following knowledge.

One of the most important things about the rotor type A-bun-end spinning machine is that the fibers are separated one by one by the 1fil fiber spinning machine.
The fibers fed into the rotor by the airflow do not create hooks, but remain straight and adhere to the inner wall of the rotor to form the threads. The goal is to lengthen the fibers and avoid reducing the strength of the thread as much as possible. The basic idea to achieve this is to form a sufficient swirling flow near the channel, and to first ensure that the airflow from the channel to the rotor is smooth without creating deceleration or turbulence. By joining the above-mentioned swirling flow, the fibers are placed on the accelerated flow that smoothly flows from the inside of the channel to the vicinity of the inner wall surface of the rotor, and the fibers remain in a straight state without creating a hook in the tlAN. It is necessary to quickly bring the fibers close to the inner wall of the rotor, and if this can be achieved, the fibers approaching the inner wall of the rotor will not only be subject to the inherent inertial force in the radial direction of the rotor, but also to the extremely fast accompanying airflow flowing near the inner wall of the rotor. While riding and turning, it is subjected to the action of centrifugal force and adheres to the inner wall of the motor. The basic configuration for realizing this idea is, first, to provide a sufficient length of the part of the rotor in which the swirling flow is fastest near the channel outlet. In other words, the circumferential speed of the combing roller of the opening device is as fast as 20 to 3011/S, and the air flow in the channel is flowing at a speed equal to or higher than the circumferential speed of the combing roller. Since the cross-sectional area is narrow and designed for accelerated flow, the airflow from the channel into the rotor maintains a considerable velocity. Therefore, it is desirable to provide a place near the channel outlet where the swirling flow inside the rotor is as fast as possible, and to prevent the thickness of the airflow from the channel from rapidly expanding or decelerating. Next, it is necessary to prevent turbulent flow from flowing into the rotor from the channel and creating a turbulent flow near the channel exit. In order to achieve this, considering the reason why turbulent flow occurs, there is no problem as long as the air flowing into the channel smoothly joins the swirling flow in the rotor, but the channel outlet should be placed on the inner wall of the rotor. If they are placed closer than necessary, the air flowing into the rotor from inside the rotor will violently collide with the inner wall of the rotor and bounce, causing disturbances in the air coming out of the rotor. It is necessary to create a flow, and n
The 4[tl[ flowing into -3 is caught up in the turbulent flow, and some of it is taken out of the rotor or becomes hook fibers inside the rotor. If you do not use it, it will cause the strength of the thread to decrease.

As mentioned above, the air flow from the inner wall hits the inside wall of the computer! Then, decelerate to the required number 1 and 4I-iCi
If the fibers are initially captured by the rotor, one of the collection surfaces
1 - The length of the culm in the axial direction [the distance between the inner wall and the outlet of the culm] must be close to within a certain range. It turns out that there is something. The range of this distance is determined by the thickness and velocity fα distribution of the swirling flow formed by the rotation of the rotor, the velocity of the airflow at the Boutonnel output, and the subsequent deceleration rate.

The present inventors have arrived at the present invention based on the knowledge described in -1ff.
it, /ko.

The spinning stomach in the two-rotor open-end spinning frame of the present invention has a predetermined diameter (1) formed in the small diameter part of the conical inner wall surface, and has a straight line shape having a small angle with respect to a plane orthogonal to the rotation axis. A rotor that has a collection surface and a linear sliding surface that is formed at a large diameter part and has a large angle with respect to a plane perpendicular to the rotation axis, and a rotor that is oriented toward the collection surface and has a short distance to the collection surface. +* L, t consists of a conveying channel formed in part so as to fit within a predetermined range.

The apparatus of the present invention comprising the above-mentioned 114 components has a linear collection surface having a small angle with respect to the linear sliding surface on the rotor inner wall with respect to the 5F which is perpendicular to the rotor axis. The accompanying swirling flow caused by the collection surface due to the rotation of the air is effectively brought closer to the vicinity of the part, and the collection surface has a predetermined contour, so that the air flow from the conveyance channel outlet part and lIi A device that forms an accompanying swirling flow on the collection surface in advance over a sufficient length in the rotor axial direction to smoothly merge the navy blue, and allows the 9F+ of the fibers riding on the swirling flow to adhere to the collection surface. It is.

Furthermore, the device of the present invention directs the inner part of the conveying channel toward the collection surface, and the air flow from the outlet part of the conveying channel violently collides with the collecting surface. Because the airflow from the outlet of the conveying channel is within a predetermined range that is not far enough to expand or decelerate, the air flow from the outlet of the conveying channel is By smoothly merging into the circular flow,
The fibers transported along with the air flow in the transport channel ride straight on the air flow from the exit of the transport channel toward the collection surface of the inner wall of the rotor and the accompanying swirling flow formed by the collection surface of the inner wall of the rotor. In addition to the 1]-3 radial inertia force that the fibers had at the exit of the conveyance channel, the centrifugal force that acts when the fibers rotate riding the accompanying swirling flow during the rotation , it immediately moves toward the collection direction of the rotor inner wall (-J reaches 1°).

Effects of the Invention Therefore, the device of the present invention prevents the occurrence of hook fiber shoulder f caused by 111 bending of fibers and the entanglement of my phase ri, and reduces uneven thickness of spun yarn and yarn defects. ,
The effective length of the knitted cord that makes up the yarn is lengthened, and the strength of the yarn is increased by 1.
It has the effect of making you get a 6-dick.

Aspects of the present invention Next, aspects of the present invention will be explained. The spinning device installed in the rotor-type open-end spinning frame according to the first aspect of the present invention is arranged so that the outlet portion of the conveying channel is directed to approximately the center in the rotor axial direction of the collection surface of the inner wall of the rotor (directed toward the 1/neck). The spinning device according to the first aspect of the present invention has the above-described configuration. This makes the effects of the present invention even more remarkable.

In the spinning device a3 of the rotor-type open-end spinning frame according to the second aspect of the present invention, the angle θ, 7 formed with the plane perpendicular to the rotation axis of the collection surface of the rotor inner wall is 30°≦θ7.
．． ≦60°, and the angle atL formed by the sliding surface of the rotor inner wall with respect to the plane perpendicular to the rotational axis is 60" ≦θ, fi
80'' and the following relationship 1/4≦hL/h with respect to [1-total axial length hl of the collection surface to rl-total axial length l+ from the open end of the rotor to the bottom surface. ,≦1
/1.5.

The spinning apparatus according to the embodiment of Bookcase 2 optimizes the quality of the collection surface on the inner wall of the rotor. That is, in the embodiment of the bookcase 2, in order to make effective use of its effects, it is necessary to keep the length of the collection surface sufficiently long. In other words, if the collection surface is short, a swirling flow sufficient to merge the airflow flowing into the rotor from the conveyance channel will not be formed, and
Since a portion of the air flow does not adhere to the collection surface and flows directly toward the sliding surface, the above-mentioned effects are no longer exhibited.

In this sense, the length of the collection surface is made sufficiently long so that most of the air flowing into the rotor from the inside of the conveyance channel flows toward the collection surface. However, if the collection surface is made too long, the angle θ, ) (see Fig. 3) of the sliding surface becomes too large in order to form a rotor while keeping the inner diameter of the rotor constant, and Ii! ? III. This is undesirable as it may cause adverse effects due to a decrease in force.3 As shown in Figure 5, when the length of the collection surface is experimentally investigated, the length of the collection surface is expressed in terms of the alignment of the rotor axis, and the length of the collection surface is The length of the rotor in the axial direction of the convergent surface is hL
, [1- When the fiber a (l focusing groove 100-total length in the axial direction is 1゛), the ratio of h, /h+ is in the range from 1/4 to 1/1.5. It has been found that it is appropriate that the length of the collection surface is determined by the number of steps in the present invention.
7 yp (!1) The effects of the second aspect of the present invention are effective regardless of the self-exhaust method or forced exhaust method.

In addition, in the embodiment of bookcase 2, the angle 1αθ of 111i
11 in a small range from 30" to 6o° ν), the fiber sliding horns on the collection surface are large, and the fiber sliding horns on the collection surface (J
The fibers are affected by the air discharged outside the rotor from the open end of the rotor, which is generated by the forced exhaust method and the self-forced D11 method. It is not discharged outside with the air.

Furthermore, in order to reduce the angles θ and l of the collection surface, [1-ta 1ift / I'l An annular gap formed between the eye-yield collecting body and the boss part near the end 44 let D-yield toward the open end. The annular gap narrows rapidly as the rotor opens, and even if the Irt sent into the rotor from the inside of the conveyance channel flies toward the open end of the rotor in the direction of the flow toward the outside of the rotor, the annular gap narrows rapidly. Since the fibers become narrower rapidly towards the end, the probability of one fiber landing on the collection surface is 1t.
This reduces the effect of preventing fibers from being discharged to the outside of the rotor.

The spinning device J3GJ included in the rotor-type open-end spinning frame according to the chain 3 aspect of the present invention is characterized in that, in the second aspect, the central streamline of the flow flowing into the rotor from the outlet of the conveyance channel and the inner wall of the The angle β with the collection surface is set within the following range of 5°<β<40°. In order to understand the optimal range of the angle between the central streamline of the air flow from the conveyance channel outlet and the collection surface of the rotor inner wall, the present inventors set the formation angle of the conveyance channel and the outlet part of the conveyance channel parallel to each other. As a result of conducting experiments with various lengths when formed, the above-mentioned range was reached as the desired range for forming airflow.

Here, the definition of the angle 1αβ will be specifically explained. In the case of a straight channel shape as shown in Figure 3,
The central streamline of the airflow flowing through the conveying channel can be considered to be substantially the same as the central axis of the conveying channel, and the angle β is the angle β between the central axis of the conveying channel and the collection surface of the inner wall of the rotor. Tominari. In addition, as shown in FIG. 6, if the outlet part of the conveyance channel 9 is bent so as to be almost parallel to the plane ff1i which is orthogonal to the rotation axis of the 0-18, the flow rate of the parallel part is several times. - If it is within the transport f-
The central streamline of the air flow flowing through the channel 9 is bent slightly parallel at the parallel portion, but when it exits the outlet, it is hardly bent at the bent portion and follows the angle of the conveyance channel before the bent parallel portion. Since it flows into the rotor at an angle, in this case, the angle between the central axis of the conveying channel before bending and the collection surface of the inner wall of the rotor can be regarded as β. Furthermore, instead of opening the outlet of the de-rho feeding channel 9 on the side surface of the boss portion 19 as shown in FIGS. In the case where an outlet part is provided at 4gl'd, if the outlet part of the conveyance channel 9 is provided 182 so that the outlet part d faces near the outer periphery of the separator 22, the passage area will be expanded and the parallel It can be considered that the direction change effect caused by the bending is weakened, and the exit part of the conveyance channel is slightly bent as shown in FIG. It can be regarded as a similar definition.

The spinning apparatus of the third aspect of the present invention has a J angle β between the central axis of the outlet of the conveyance channel and the collection surface of the inner wall of the rotor in a small optimum range, so that the air flow from the outlet of the conveyance channel is directed to the collection surface. This prevents the occurrence of a reflected flow due to the collision of the conveyance channel, thereby preventing the occurrence of turbulent flow near the outlet of the conveyance channel. In other words, the airflow flowing into the rotor from the inside of the conveying channel flows into the rotor inner wall at a small angle with respect to °! Therefore, it does not bounce back toward the outlet of the channel and form a turbulent flow in the zone near the channel outlet f1.
- It bounces back toward the inside and joins the swirling flow inside the rotor, allowing the braid to be conveyed without bending. It has the effect of quickly approaching the inner wall of the rotor from within the tunnel and adhering to the IM capture surface of the inner wall of the computer.

In the fourth aspect of the present invention, in the spinning device in the rotor-type oven-held spinning frame of tllllIi, the distance #L from the central axis of the outlet of the conveying channel to the collection surface of the n-shita inner wall is Within the following range (1/3) L≦t≦(
1/2) L.

In the embodiment of Suiden 4, the distance between the conveyance channel outlet and the opposing inner wall surface is set to 1/2 or less of the average fiber length, so that from the time when the fiber tip adheres to the collection surface of the rotor inner wall, the fiber tip moves at the same speed as the circumferential speed of the rotor, while the trailing end of msi is still in the channel, and the large speed difference between the leading and trailing ends of the fiber causes the fiber to be stretched straighter and move toward the rotor. Adheres to the inner wall.

In the first aspect of the spinning device in the rotor type A-pun-end spinning machine of the W45 aspect of the present invention, the collecting surface formed in the small diameter part of the rotor inner wall and the sliding surface formed in the large diameter part are different from each other. , are formed so as to be connected via a step formed by walls extending in the radial direction.

The embodiment of Sui-Tei 5 is that when the fibers attached to the collection surface formed in the small diameter part move the same way to the maximum inner diameter part of the rotor, the rear end of the fibers are attached to the collection surface (J name During this process, the tip of the fiber crosses the stepped surface and comes into contact with a sliding surface whose radius is larger than that of the collecting surface, and the fibers suddenly collapse due to the large difference in centrifugal force based on the half-t difference between the collecting surface and the sliding surface. By pulling the tips, the orientation of the fibers is increased.

The spinning device in the rotor-type A-puncondo spinning frame according to the sixth aspect of the present invention is such that the spinning device according to the fourth aspect has a small A linear fiber accumulation surface with square claws is formed continuously on the sliding surface.

In addition to the fourth aspect, the aspect of Mizui 6 is a straight 4JAe
Since it adds lf accumulation, it not only provides the effects of the second to fifth aspects described above, but also provides effects specific to the aspect of the water droplet 6.

10) Angle 1 between the center streamline of the airflow from the channel and the inner wall surface of the rotor to achieve the effect of the third aspect of e.
(When β was experimentally investigated, it was found that 56 to 400 was suitable. In the embodiment of Suiden 6, this value will be considered based on the shape of the conveyance channel and rotor. Fig. 3 shows As shown, the angle between the central axis of the conveyance channel and the plane perpendicular to the rotor rotation axis is θ2, and the angle 1111 between the conical surface 1 near the rotor open end E1, that is, the collection surface, and the plane perpendicular to the rotor rotation axis is θ2. The angle θ11 and the position of the central axis of the conveying channel when viewing FIG. 3 from above and considering the rotor as a flat circle are usually 1/3 to 2/3 R- with respect to the maximum inner diameter Rm of the III focused vortex. The flow flows into the rotor through a distance of In order to make the angle β' between the shaft and the rotor inner wall surface in the range of 5° to 40°, the central axis of the conveying channel should be located at approximately 1/2 Rm, and θ1-25°.
Under the conditions, °C is the angle θ6 of the collection surface near the open end of the rotor. is between 30° and 60°, preferably between 35° and 55°
The range is ゜.

In this way, the angle IJ [? , + is small, so the shape of the inner wall of the rotor has the function of collecting the fibers and the sliding function of sliding the fibers down to the focusing groove.If the shape of the inner wall surface of the rotor is composed of one conical surface C, a boss portion with a channel is formed. The inner diameter of the rotor becomes very large compared to the direction tY, and an increase in yarn tension during spinning causes the disadvantage that the spinning conditions are narrowed. Furthermore, if the inner diameter of the rotor is not increased, the boss diameter will become smaller and the cross-sectional area of the channel will become smaller, resulting in an extremely reduced airflow flowing through the channel, making it virtually impossible to feed the fibers from the channel into the rotor. . Therefore, the angle θ1. In order to make the rotor smaller and have an ideal rotor shape, the shape of the inner wall surface of the rotor should be changed to the collection surface near the terminal end and the sliding surface branch tII.
The most appropriate configuration is a conical surface composed of three straight lines with full convergence. Then, by setting the angle β between the central axis of the channel and the collection surface in the range of 5° to 40°, the collection II! The tip of the fiber fed into the 0-tae from the channel placed close to the surface quickly attaches to the collection surface, and the rear end also attaches to the collection surface by being spread out in a pure white manner. As a result, uneven thickness of spun yarn and yarn defects can be reduced, and yarn strength can be improved.

EXAMPLE Next, an example embodying the present invention will be described with reference to FIG. This example is the above-mentioned 11th! This device belongs to all of the i to 5th flu systems, and basically has the same configuration as the conventional device shown in FIG. 1, differing only in the rotor shape and the conveyance channel. The 0-event shape is shown in Figure 3. As shown in FIG. 3, the rotor shape of this embodiment is such that one surface thereof has a collection surface 16 for adhering the open txtam sent into the rotor 8 from the channel 9, and imm*bundle groove 1 formed at the inner diameter part with the opening 1111fi
3 FLs with 17 sliding surfaces connected to 0 and 10 convergence points
It consists of Ill ifn. In the cross section of the rotor vertically divided by a plane parallel to the rotor rotation axis, the center axis of the channel 9 and 1lii
Extraction ii'lj 16 and angle β is 22° 4
1 Sea urchin” F □ Center axis of p tunnel 9 and 111 of rotor 8
The angle θλ between the plane 161 that lies 1H on the axis of one rotation is 25°, and the angle θλ is a plane perpendicular to the rotation axis of the collection surface 16/futurer 8. 1. Keep the 16th mark better by -1 minute.
'JijM 10HLi-)n-axis direction length lu is 10.5vw, collection surface 1 (3's n-axis direction length h2 is 4.8ms, the ratio of l+Jh is about 0.46. Roughly speaking, a boss inserted into the open end of the rotor 8 is placed on the side surface of the part 19 so that the center axis of the channel 9 is extended to reach the collection surface 16 and at the bottom of the channel. The outlet end of the channel 9 is provided so that when the outlet end of the channel 9 is opened and the central axis of the channel 9 is extended, the position at which it reaches the collection surface is approximately at the center of the collection surface 16. There is.

A navel 11 having a thread pull-out hole 12 for pulling out the thread Y is disposed at the center of the boss portion 19. 1 in a
] - Antagonizing holes 21 are formed in the bottom part 20 of the tank 8.

Next, the operation of the device constructed as described above will be explained. Now, the fiber IF (only one fiber is shown as a representative) that has been spread apart by the mining roller 6 is Chi1? channel 9 into the air stream into the computer 8,
The fibers 11 are collected into the focusing groove 10 through the collection surface 16 and the sliding surface 17, heated by the rotation of the rotor 8, and then drawn out from the thread pull-out hole 12 and wound into a package. The distance from the protruding end of the channel 9 to the collection surface 16 is less than 1/2 of the average fiber length, so that the airflow flowing from inside the channel 9 into the computer 8 reaches the collection surface 16.
The mttn flows smoothly into the air without violently colliding with the air, bringing the mttn close to the collection surface, so the m fibers turn under the influence of the accompanying airflow near the collection surface and are not affected by centrifugal force. As a result, the tip of 1lilfflF immediately comes into contact with the collection surface 16 and tries to rotate along with the rotor 8. On the other hand,
At this time, the rear end of group F is still inside channel 11/9, so as the tip moves to rotor 8 and b, the fiber F moves out of channel i/channel 9 to the 1st edge of channel 11. Leaving Channel 9 while making contact.

For this reason, the fibers F receive a sufficient stretching action ()τ and adhere to the collecting surface 16 in a straight state, slide on the sliding surface 171, and are focused in the fiber convergence groove 10, so that the fibers J constituting the yarn Y # 1
(The effective fiber length of F becomes longer. In this example, the fine fiber length is 2O
The strength of the cotton thread in No. 3 is 46ko expressed in terms of strength.
``In the conventional device N shown in Fig. 1, the Lee force is 1) and 1ko when the rotor inner wall surface 8a has an inclination angle of 74°, which proves that the effect of this embodiment is great (see below). (See table).It has also been confirmed that there are no fibers other than threads coming out from the open end of the rotor.

Figures 4 and 5 show the results of experiments in which the angles θ and I of the collection surface and the length hl of the collection surface were changed in other embodiments.
As shown in the figure. It is recognized that the angle β formed by the collection surface 16 and the central axis of the channel 9 and the length of the collection surface 16 have an appropriate value l.

In the embodiment of FIG. 10, the collecting surface 16 and the sliding surface 17
are connected via a stepped surface 24 formed by a wall extending in the radial direction of the rotor 8) between them, so that the collecting surface 16 transitions to the sliding surface 17. is expanded to. In other words, with the stepped surface 24 as the border,
The rear end of the fiber remains attached to the collection surface 16, while the tip comes into contact with the sliding surface 17, which has a small diameter. art l;
l It is rapidly pulled and elongated. As a result, the fibers are straightened, and from the sliding surface 17 to the fiber focusing groove 108f.
rJ moving. The size of this stepped surface 24 is determined by the size of the rotor 8.
of! 11 compared with the rotor radius at full focus 10
If the ratio is in the range of 40 to 1/4, the effect of fiber interaction can be obtained. Specifically, in the case of the rotor radius of 201 m,
It was effective to have a step surface with 240 large serrations.

Note that this invention is not limited to the above embodiments.

For example, as shown in FIG. 6, the vicinity of the outlet of the channel 9 is bent horizontally so that the flow at the horizontal bend is within the equation 1, and the final direction and the plane intersecting i with the rotation axis of the roll 18. It may also be formed so that the angle θ is 0° (7).Since the length of the horizontal bend is known, the airflow in the channel 9 is slightly bent at the horizontal bend, but ultimately the channel The air flow is directed toward the entire inner wall along the forming angle.As shown in FIG.
If the separator 22 is inserted 5Q instead of having an opening on the side surface of the lever, it will be placed so that it faces the upper surface of the lever lever 22 [1].
It is also possible to set up a GJ. In this case, the part indicated by A is considered to be the exit of channel 9 for convenience. Furthermore, as shown in FIG.
) Alternatively, as shown in FIG. 9, the tip of the channel 9 may be formed by a pipe 23 without providing the boss portion 19. Further, this device can be applied to any of the self-exhaust type, forced exhaust type, and a combination of both. Moreover, the 10th
In the embodiment shown in the figure, the stepped surface 24 is aligned with the rotor center axis if
1 angle % @vi711 It does not have to be formed by 1, but it is imaginary to the right angle surface and forms an angle in the downward direction b
good.

According to the above-described embodiment, as detailed in No. 1 above, the fibers entering the channel 11-9 are attached to the collecting surface in a straight posture, and then quickly slide on the sliding surface. Since the fibers are bundled to a concentration of t1%, the effective fiber length of the fibers constituting the yarn becomes longer and the yarn strength increases. In addition, since the fibers exiting the channel quickly land in a narrow area on the collecting surface, the entanglement of the fibers with each other is reduced, which helps to improve yarn strength, reduce thickness unevenness, and reduce yarn defects. Furthermore, fewer #l fibers are wound around the yarn, uneven thickness is reduced, yarn defects are reduced, and the texture of the yarn is similar to that of ring-spun yarn.

Further, there is no tel of fibers coming out from the open end of the rotor, and there is an excellent effect that all the raw materials are effectively turned into yarn.

[Brief explanation of drawings]

FIG. 71 is a cross-sectional view of a one-tar oven one-end type UJ spinning example, FIG. 2 is a cross-sectional view of the main part of a conventional device, and FIG. 3 is an embodiment of the present invention. 1' is a cross-sectional view of the main part, FIG. 4 is a line diagram showing changes in the strength of the spun yarn glue by changing the angle β between the center axis of the tunnel 9 and the collection surface, and FIG. Length of the collection surface in the rotor axial direction 11λ)/(rotor axial length J from the open end of the rotor to the fiber focusing groove j)
Figures 6 to 10 are diagrams showing changes in strength of the spun yarn glue due to changes in the strength of the spun yarn. Parallel to the rotor rotation axis in a plane that includes the central axis of the tunnel 0, the thread pull-out hole 12, the collection surface 16, the sliding surface 17, and the central axis of the tunnel 0. 1 The angle I between the central streamline of the airflow from the butunnel 9 and the collection surface 16 in the cross section when the computer is cut vertically
ffβ, the angle θ between IIi perpendicular to the rotation axis of the rotor and the collection surface, 1, the angle 1 between the sliding surface and the plane perpendicular to the rotor rotation axis 1αθ, the shape direction of one channel and the angle θλ of the plane perpendicular to the rotor rotation axis
, on the rotor axial length h of the collection surface, the rotor axial length from the rotor end to the fiber focusing groove 11. . Special fft! lf applicant Toyota Automatic Loom Works Co., Ltd. Toyota Central Research Institute Daiwabo Stock joint trial attorney Patent attorney On 1) Hirono Ward Ward Law Law

Claims (1)

[Claims] 1. The open fibers sent along with the air flow from the conveying channel 11 are attached to the inner wall surface of the rotor, and the tiA ITO, which is focused in the fiber focusing groove provided at the maximum inner diameter part, is placed in the center. The J3 rotor-type open-end spinning machine is equipped with a rotor-type open-end spinning machine that continuously pulls out the yarn while heating it through a disposed pull-out hole.
A rotor having a linear collection surface having a small angle with respect to a plane perpendicular to the rotation axis, and a linear sliding surface having a large angle with respect to the plane perpendicular to the rotating axis formed in the large diameter part. 1. A rotor-type automatic transmission channel comprising: a conveying channel directed toward the collection surface and having an outlet portion formed so that the distance to the collection surface falls within a predetermined range close to the collection surface;・A spinning device installed in a bun-end spinning machine. 2. The exit 1 part of the conveyance channel is oriented toward the center of the collection surface of the inner wall of the rotor in the axial direction of the rotor, and Axis-1: is arranged so that the distance 141tJ!/ to the collection surface of the rotor inner wall falls within the following range (or average fiber length) (1/20)L≦I≦L. A spinning device in a rotor-type oven-end spinning machine according to claim 1, characterized in that: 3. An angle θ, 1 of the collecting surface of the inner wall of the rotor with respect to a plane perpendicular to the axis of rotation is 30. °≦θ, l≦600,
With respect to Wm perpendicular to the rotational axis of the sliding surface of the rotor inner wall, the angle ゜ is 60°≦07*'80' and 15,
The length of the collection surface in the rotor axial direction is the rotor axial length hl from the open end of the coater to the bottom surface, and the following relationship 1/4≦h, / h +≦1/1.5 is satisfied. A spinning device in a rotor-type A-Bun J-type spinning machine according to claim 1, characterized in that: 4. The J angle β between the central streamline of the main flow flowing into the rotor from the outlet of the conveyance channel and the collection surface of the inner wall of the rotor is set to 400 by 5° within the following range. 0 in range item 3
- Spinning device in a ta-type open-end spinning machine. 5. The distance 1119 from the central axis of the conveyance channel outlet to the collection surface of the rotor inner wall is within the following range (1/3)
5. A spinning device in a neck-type open-end spinning frame according to claim 4, characterized in that ρ≦(1/2)I-. 6. A linear fiber accumulation surface having small ridges with respect to a plane perpendicular to the rotational axis is formed at the maximum inner diameter portion of the inner wall surface of the rotor so as to be continuous with the sliding surface. A spinning device in a rotor-type open-end spinning frame according to scope 5. 7. The collection surface formed on the small diameter portion of the inner wall surface of the rotor and the sliding surface formed on the large diameter portion are connected via a stepped surface formed by a wall extending in the radial direction. A spinning device included in a rotor-type open-end spinning frame according to claim 11.